Q.

The smallest known prokatyotic organism is –

A. Microcystis
B. Mycoplasma
C. Bacteria
D. Chlorella
Answer» B. Mycoplasma
Explanation: Mycoplasmas are the smallest and simplest prokaryotes capable of self-replication. Keeping the number of structural elements, metabolic pathways and components of the protein synthesizing machinery to an essential minimum places Myeoplasmas closest to the concept of 'minimum cells'.
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